So here's how to make all of your randomly colored boxes, not so random.
For
Cosmically oriented Ricardo:
This can only be done AFTER you have completed your map.
1. AFTER finishing up your map, with the intent to never move any of the boxes again, save and quit.
2. Go back into your map with Forge.
3. The colors the boxes are NOW will be their permanent colors, UNLESS you grab them again.
4. If a box is not the color you desire, grab it real quick. Save and Quit. And go back in.
5. When you have the color desired, you cannot grab it again without the possibility (2/3) of changing it's color.
6. Repeat steps with all of the boxes you would like to be a specific color.
7. After everything is the color you would like it to be, save and quit.
8. Load up your map in a custom game, and voila!
Remember:
-Grabbing your box in forge after it has been set to the color you want, has the potential to change it's color.
-Grabbing a merged/interlocked box will probably mess up the merging/interlocking, so you will want to setup some reinforcements around it first.